{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
{-# LANGUAGE OverloadedStrings  #-}
{-# LANGUAGE RecordWildCards    #-}
{-# LANGUAGE TypeFamilies       #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-binds   #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Network.AWS.IAM.ListGroupPolicies
-- Copyright   : (c) 2013-2016 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists the names of the inline policies that are embedded in the specified IAM group.
--
--
-- An IAM group can also have managed policies attached to it. To list the managed policies that are attached to a group, use 'ListAttachedGroupPolicies' . For more information about policies, see <http://docs.aws.amazon.com/IAM/latest/UserGuide/policies-managed-vs-inline.html Managed Policies and Inline Policies> in the /IAM User Guide/ .
--
-- You can paginate the results using the @MaxItems@ and @Marker@ parameters. If there are no inline policies embedded with the specified group, the action returns an empty list.
--
--
-- This operation returns paginated results.
module Network.AWS.IAM.ListGroupPolicies
    (
    -- * Creating a Request
      listGroupPolicies
    , ListGroupPolicies
    -- * Request Lenses
    , lgpMarker
    , lgpMaxItems
    , lgpGroupName

    -- * Destructuring the Response
    , listGroupPoliciesResponse
    , ListGroupPoliciesResponse
    -- * Response Lenses
    , lgprsMarker
    , lgprsIsTruncated
    , lgprsResponseStatus
    , lgprsPolicyNames
    ) where

import           Network.AWS.IAM.Types
import           Network.AWS.IAM.Types.Product
import           Network.AWS.Lens
import           Network.AWS.Pager
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | /See:/ 'listGroupPolicies' smart constructor.
data ListGroupPolicies = ListGroupPolicies'
    { _lgpMarker    :: !(Maybe Text)
    , _lgpMaxItems  :: !(Maybe Nat)
    , _lgpGroupName :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListGroupPolicies' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lgpMarker' - Use this parameter only when paginating results and only after you receive a response indicating that the results are truncated. Set it to the value of the @Marker@ element in the response that you received to indicate where the next call should start.
--
-- * 'lgpMaxItems' - Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the @IsTruncated@ response element is @true@ . This parameter is optional. If you do not include it, it defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that case, the @IsTruncated@ response element returns @true@ and @Marker@ contains a value to include in the subsequent call that tells the service where to continue from.
--
-- * 'lgpGroupName' - The name of the group to list policies for. The <http://wikipedia.org/wiki/regex regex pattern> for this parameter is a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: =,.@-
listGroupPolicies
    :: Text -- ^ 'lgpGroupName'
    -> ListGroupPolicies
listGroupPolicies pGroupName_ =
    ListGroupPolicies'
    { _lgpMarker = Nothing
    , _lgpMaxItems = Nothing
    , _lgpGroupName = pGroupName_
    }

-- | Use this parameter only when paginating results and only after you receive a response indicating that the results are truncated. Set it to the value of the @Marker@ element in the response that you received to indicate where the next call should start.
lgpMarker :: Lens' ListGroupPolicies (Maybe Text)
lgpMarker = lens _lgpMarker (\ s a -> s{_lgpMarker = a});

-- | Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the @IsTruncated@ response element is @true@ . This parameter is optional. If you do not include it, it defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that case, the @IsTruncated@ response element returns @true@ and @Marker@ contains a value to include in the subsequent call that tells the service where to continue from.
lgpMaxItems :: Lens' ListGroupPolicies (Maybe Natural)
lgpMaxItems = lens _lgpMaxItems (\ s a -> s{_lgpMaxItems = a}) . mapping _Nat;

-- | The name of the group to list policies for. The <http://wikipedia.org/wiki/regex regex pattern> for this parameter is a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: =,.@-
lgpGroupName :: Lens' ListGroupPolicies Text
lgpGroupName = lens _lgpGroupName (\ s a -> s{_lgpGroupName = a});

instance AWSPager ListGroupPolicies where
        page rq rs
          | stop (rs ^. lgprsIsTruncated) = Nothing
          | isNothing (rs ^. lgprsMarker) = Nothing
          | otherwise =
            Just $ rq & lgpMarker .~ rs ^. lgprsMarker

instance AWSRequest ListGroupPolicies where
        type Rs ListGroupPolicies = ListGroupPoliciesResponse
        request = postQuery iam
        response
          = receiveXMLWrapper "ListGroupPoliciesResult"
              (\ s h x ->
                 ListGroupPoliciesResponse' <$>
                   (x .@? "Marker") <*> (x .@? "IsTruncated") <*>
                     (pure (fromEnum s))
                     <*>
                     (x .@? "PolicyNames" .!@ mempty >>=
                        parseXMLList "member"))

instance Hashable ListGroupPolicies

instance NFData ListGroupPolicies

instance ToHeaders ListGroupPolicies where
        toHeaders = const mempty

instance ToPath ListGroupPolicies where
        toPath = const "/"

instance ToQuery ListGroupPolicies where
        toQuery ListGroupPolicies'{..}
          = mconcat
              ["Action" =: ("ListGroupPolicies" :: ByteString),
               "Version" =: ("2010-05-08" :: ByteString),
               "Marker" =: _lgpMarker, "MaxItems" =: _lgpMaxItems,
               "GroupName" =: _lgpGroupName]

-- | Contains the response to a successful 'ListGroupPolicies' request.
--
--
--
-- /See:/ 'listGroupPoliciesResponse' smart constructor.
data ListGroupPoliciesResponse = ListGroupPoliciesResponse'
    { _lgprsMarker         :: !(Maybe Text)
    , _lgprsIsTruncated    :: !(Maybe Bool)
    , _lgprsResponseStatus :: !Int
    , _lgprsPolicyNames    :: ![Text]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListGroupPoliciesResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lgprsMarker' - When @IsTruncated@ is @true@ , this element is present and contains the value to use for the @Marker@ parameter in a subsequent pagination request.
--
-- * 'lgprsIsTruncated' - A flag that indicates whether there are more items to return. If your results were truncated, you can make a subsequent pagination request using the @Marker@ request parameter to retrieve more items. Note that IAM might return fewer than the @MaxItems@ number of results even when there are more results available. We recommend that you check @IsTruncated@ after every call to ensure that you receive all of your results.
--
-- * 'lgprsResponseStatus' - -- | The response status code.
--
-- * 'lgprsPolicyNames' - A list of policy names.
listGroupPoliciesResponse
    :: Int -- ^ 'lgprsResponseStatus'
    -> ListGroupPoliciesResponse
listGroupPoliciesResponse pResponseStatus_ =
    ListGroupPoliciesResponse'
    { _lgprsMarker = Nothing
    , _lgprsIsTruncated = Nothing
    , _lgprsResponseStatus = pResponseStatus_
    , _lgprsPolicyNames = mempty
    }

-- | When @IsTruncated@ is @true@ , this element is present and contains the value to use for the @Marker@ parameter in a subsequent pagination request.
lgprsMarker :: Lens' ListGroupPoliciesResponse (Maybe Text)
lgprsMarker = lens _lgprsMarker (\ s a -> s{_lgprsMarker = a});

-- | A flag that indicates whether there are more items to return. If your results were truncated, you can make a subsequent pagination request using the @Marker@ request parameter to retrieve more items. Note that IAM might return fewer than the @MaxItems@ number of results even when there are more results available. We recommend that you check @IsTruncated@ after every call to ensure that you receive all of your results.
lgprsIsTruncated :: Lens' ListGroupPoliciesResponse (Maybe Bool)
lgprsIsTruncated = lens _lgprsIsTruncated (\ s a -> s{_lgprsIsTruncated = a});

-- | -- | The response status code.
lgprsResponseStatus :: Lens' ListGroupPoliciesResponse Int
lgprsResponseStatus = lens _lgprsResponseStatus (\ s a -> s{_lgprsResponseStatus = a});

-- | A list of policy names.
lgprsPolicyNames :: Lens' ListGroupPoliciesResponse [Text]
lgprsPolicyNames = lens _lgprsPolicyNames (\ s a -> s{_lgprsPolicyNames = a}) . _Coerce;

instance NFData ListGroupPoliciesResponse